A switched reluctance motor

Abstract

The invention discloses a switch reluctance motor which is composed of three 8 / 12 pole single-phase switched reluctance motors; the three single-phase motors are arranged in series in the axial direction; and rotors of three single-phase motors are staggered by a certain angle. Stator teeth of each single-phase motor are arranged alternatively at angles of 30 degrees and 60 degrees; each two stator teeth with a difference of 30 degrees are wound together with one coil, and altogether four coils are connected in series or in parallel to form one-phase winding; and further, a three-phase windingof the motor can be formed. Since the three single-phase motors are isolated from each other and there is no coupling between magnetic circuits, the switched reluctance motor has stronger fault tolerance, higher reliability, and less core loss. Furthermore, the motor has the advantages of small torque ripples, strong starting performance, etc., and is especially suitable for applications with start-up capability and reliability requirements.

Description

technical field [0001] The invention relates to a switched reluctance motor, which belongs to the technical field of switched reluctance motors. Background technique [0002] The stator and rotor of the switched reluctance motor are double-salient pole structures, and the rotor has no windings and permanent magnets. It has the characteristics of simple and firm structure, low cost, high temperature resistance and high-speed adaptability. It is widely used in civilian fields. [0003] However, the traditional structure of the switched reluctance motor is limited by the double salient pole structure and operating mechanism, which not only leads to large torque ripple, but also makes the output torque small at some specific positions, which reduces the starting ability of the motor; in addition, due to the The current generates magnetic circuits that couple to each other, resulting in low fault tolerance of traditional switched reluctance motors. For this reason, the present ...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional structure switched reluctance motor is limited by the double salient pole structure and operating mechanism, which not only leads to large torque ripple, but also makes the output torque small in some specific positions, which reduces the starting ability of the motor; in addition, due to the The current generates magnetic circuits that are coupled to each other, resulting in low fault tolerance of traditional switched reluctance motors

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